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io_uring: move defer_list to slow data
author
Pavel Begunkov
<asml.silence@gmail.com>
Wed, 15 Jun 2022 16:33:48 +0000
(17:33 +0100)
committer
Jens Axboe
<axboe@kernel.dk>
Mon, 25 Jul 2022 00:39:12 +0000
(18:39 -0600)
draining is slow path, move defer_list to the end where slow data lives
inside the context.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link:
https://lore.kernel.org/r/e16379391ca72b490afdd24e8944baab849b4a7b.1655310733.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/io_uring_types.h
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diff --git
a/io_uring/io_uring_types.h
b/io_uring/io_uring_types.h
index
fb87af5
..
ee58273
100644
(file)
--- a/
io_uring/io_uring_types.h
+++ b/
io_uring/io_uring_types.h
@@
-162,7
+162,6
@@
struct io_ring_ctx {
struct io_uring_sqe *sq_sqes;
unsigned cached_sq_head;
unsigned sq_entries;
- struct list_head defer_list;
/*
* Fixed resources fast path, should be accessed only under
@@
-274,8
+273,12
@@
struct io_ring_ctx {
struct work_struct exit_work;
struct list_head tctx_list;
struct completion ref_comp;
+
+ /* io-wq management, e.g. thread count */
u32 iowq_limits[2];
bool iowq_limits_set;
+
+ struct list_head defer_list;
};
};